Air compressor



FIG. 1 is a perspective view of an air compressor showing my new design;

FIG. 2 is an elevational view thereof showing the side opposite that inFIG. 1;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof.

The design resides in the portions shown in full lines in the drawing;the underside of the design being without ornamentation.

The ornamental design for an air compressor, substantially as shown anddescribed.